UNOFFICIAL

Hi,

I'm trying to recover from an issue that was caused by the 
table.split.threshold being set to a very low size that then generated a 
massive load on zookeeper and cluster nodes timing out communicating with 
zookeeper while Accumulo was splitting tablets.  This was noticed when tablet 
servers were being declared dead.

I've corrected the threshold and Accumulo is back online however there are 8K 
unhosted tablets that are not coming online.

Running check the checkTablets script produces the exact number of errors as 
there are unhosted tablets with a message like:

4d4;blah::words::4gfv43@(host:9997[23423442344234f23fd],null,null_ is 
ASSIGNED_TO_DEAD_SERVER #walogs:2

I'm not concerned if there is data in these tablets and it is lost in returning 
the system to a healthy state because I suspect other Accumulo operations can't 
proceed while tablets are unhosted so just need to remove these issues.

Any advice would be great.

Thanks in advance,
Matt

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